William Mark Allen, M.D.
Emergency Medicine Physician · Middletown, CT
William Mark Allen, M.D. is an emergency medicine physician with a practice address in Middletown, Connecticut, and NPI 1821060369, issued on Feb 7, 2006. Check the license (Connecticut 034661, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William Mark Allen
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 034661 CT
Self-reported in NPPES; status is on the state search - Practice location
- 28 Crescent St, Middletown, CT 06457
- Phone
- (860) 344-6394
- Enumerated
- Feb 7, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (860) 344-6748
- Medicare enrollment
- Enrolled (PECOS I20170914000706); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 1992
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 846 in Connecticut → Look up another NPI →
Also registered at 28 Crescent St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tori Adamczyk, PHARMD, RPHPharmacist1881533859
- Jacqueline Atkinson, PA-CMedical Physician Assistant1871022293
- Tina Bafumi, M.D.Pediatrics Physician1033391677
- David Baggish, M.D.Nephrology Physician1598748808
- Jonathan Bankoff, MDEmergency Medicine Physician1306041728
- Kevin Baruzzi, MDEmergency Medicine Physician1588610307
Verify William Mark Allen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 034661Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% more Medicare Part D claims than the average emergency medicine physician in 2024
266 Medicare Part D claims for 155 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 46 claims were for opioids.
Most prescribed
- Tramadol Hcl24 claims
- Methocarbamol21 claims
- Hydrocodone-Acetaminophen17 claims
- Ondansetron Odt17 claims
- Amoxicillin-Clavulanate Potass13 claims
- Albuterol Sulfate Hfa12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Travis County Emergency Physicians PAHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Mark Allen among 846 emergency medicine physician records in Connecticut
William Mark Allen, M.D. is one of 846 emergency medicine physician records with a practice address in Connecticut. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 65% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1992 · median 2011 among the 574 with a school on file
- Record last updated2007 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 emergency medicine physician records list a practice address in Middletown
They are 28 of the 1,590 NPPES records with a practice address in Middletown, and 846 emergency medicine physician records in Connecticut.
All 846 in Connecticut → Every provider in Middletown → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Mario Capuzzi, MDMiddletown, CT 064571598730905
- David Cosentino, MDMiddletown, CT 064571265407233
- Megan Cosentino, MDMiddletown, CT 064571609841675
- Janet Gordon, MDMiddletown, CT 064571396710711
- Mary Harkin, M.D.Middletown, CT 064571629040175
- John Kreider, MDMiddletown, CT 064571689649238
- John Lynch, MDMiddletown, CT 064571093780074
- William Lynders, M.D.Middletown, CT 064571528030145
Common questions
What is William Mark Allen, M.D.'s NPI number?
William Mark Allen, M.D.'s National Provider Identifier (NPI) is 1821060369, issued on Feb 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Mark Allen, M.D. located?
The NPPES record lists a practice address at 28 Crescent St, Middletown, CT, 06457. Phone: (860) 344-6394. Providers update this record themselves, so call before visiting.
How can I verify William Mark Allen, M.D.'s license?
NPPES lists Connecticut license number 034661, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Mark Allen, M.D. prescribe under Medicare Part D?
In 2024, William Mark Allen, M.D. had 266 Medicare Part D claims for 155 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.